margaret warner talks with former supreme court justice david souter tonight in new hampshire. we'll carry a live stream of the event on our web site. and tonight's edition of "need to know" explores the american military's use of aerial drones against al qaeda members in pakistan. we have a link. all that and more is on our web site, newshour.pbs.org. judy. >> woodruff: and that's the newshour for tonight. on monday, we'll update the state of the presidential campaign with susan page and stuart rothenberg. i'm judy woodruff. >> brown: and i'm jeffrey brown. "washington week" can be seen later this evening on most pbs stations. we'll see you online, and again here monday evening. have a nice weekend. thank you and good night. >> major funding for the pbs newshour has been provided by: >> and by the bill and melinda gates foundation. dedicated to the idea that all people deserve the chance to live a healthy productive life. >> and with the ongoing support of these institutions and foundations. and... >> this program was made possible by the corporation for puic oadsting. and by